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BoostGear 02-13-2010 09:03 AM

External wastegates are always better if you have the money.

98jeepsrt6 02-13-2010 09:13 AM

What do you think about the turbonetics turbo i found.. kinda like the idea of the ball bearing.. either yes or no.... good buy or bust..

BoostGear 02-13-2010 09:17 AM


Originally Posted by 98jeepsrt6 (Post 1298779)
What do you think about the turbonetics turbo i found.. kinda like the idea of the ball bearing.. either yes or no.... good buy or bust..

If it is the one with the P-Trim turbine wheel that you posted in this thread I said pass in my last post.

98jeepsrt6 02-13-2010 09:24 AM

ok didnt see it it automatically came to this page.... ok im stickin with the hx...

98jeepsrt6 02-15-2010 02:55 PM

ok ive got another ?? to throw on here but i know what to expect with some answers... how do i go about lowereing my jeep xj about 2.5 to 3 inches.... i have a rough idea that seems plausible but not for sure.. anyone have any ideas on how to lower a unibody vehicle???????

cherokeekid 02-17-2010 05:48 PM

I'm looking at doing something similiar, I've done a number of searches in addition to reading a number of technical sites. Orignally was looking at a T3/T4 but due to siz constraints I'm curious about the t28, this was the turbo recommended by the person that referred me to this site. The Jeep is daily driven (rpms rarely above 4000). Needs minimal lag between 2-4k rpm.

The turbo will need to fit under the intake manifold (dual batteries and 2 AC compressors).

Using some of the online calculators, a gt28 with between .63-.86 AR should work. All the posts I see state a larger turbo is needed. Thoughts on this smaller unit?

cherokeekid 02-17-2010 05:55 PM


Originally Posted by 98jeepsrt6 (Post 1298810)
ok ive got another ?? to throw on here but i know what to expect with some answers... how do i go about lowereing my jeep xj about 2.5 to 3 inches.... i have a rough idea that seems plausible but not for sure.. anyone have any ideas on how to lower a unibody vehicle???????

front are coils-use a shorter coil. rear is sprung over, remove a leaf or switch to spring under (will lower 5-6") using lift springs or lift shackles to level the rear.

98jeepsrt6 02-18-2010 07:37 AM


Originally Posted by BoostGear (Post 1298728)
I realize the 4.0L Inline 6 from Jeep is pretty inefficient when it comes to breathing and revving, but lets do a simple break down of displacement vs. turbo sizing.

Stock eclipse engine - 2.0L with a half way decent breathing DOHC head.

Stock jeep motor - 4.0L with an obsolete head that dates back to the 1960's.

I think you need a little more turbo to get started, I'm not saying it won't work, just that your manifold will be glowing at cruising speeds because you will have her backed up with a small turbo. If you did do this it would make great torque, just not much more power and would probably fall on it's face up top big big time.

A turbo jeep with a 4.0L used to hang around the drag strip near Pittsburgh and the owner ran a 60-1 with a stage 5 turbine wheel. That is almost double the size of a Big16G It ran 12's and was reliable to the best of my knowledge.

This is what this guy informaed me.... im taking his advive remember most of those guys putting turbos on their jeep are rock crawling and they need that extra power just to pass big rigs on the high way if ur looking for hp then go bigger... if not im not to sure about that size turbo but ill look in to it and see if similar to the turbonetics ball bearing turbo i was looking at...

and for the batterys just relocated either one or both the trunk of the car im incorperating mine with the sub box im currently building..

98jeepsrt6 02-18-2010 07:41 AM


Originally Posted by cherokeekid (Post 1298857)
front are coils-use a shorter coil. rear is sprung over, remove a leaf or switch to spring under (will lower 5-6") using lift springs or lift shackles to level the rear.

so if i do the leaf under it will drop that much didnt think it would thought it would just drop the same as the width of the axle.. but that was my first intensions with the rear and and an airbag to help support the weight..
and the front was new coils but what car coil fit on cherokee s??? if not cut the coil or clamp the coil and add an airbag to stop any bouncing.. but that was my idea i dont know if there a correct way or not...

Have you done this to ur jeep or u know someone who has...??

turbof22a 02-18-2010 02:11 PM

there is jeep turbo in the fab section. it was made by csaddict check it out it is pretty tits


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